Experiments made to determine the temperature co-efficients of Watson's magnetographs . -My -i2y ; lOy *-ay Curve coT^eChedfor slip ya-i 7 IP u 12 13 15 J_ ^ Uncorrected Curve 16 Itrs J Time Scale. II. 12th Feb. .c / .A w .A/i /?^?^\ k

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